Crystal Harris Engagement Ring

America’s #1 Gold-digger Playboy Playmate Crystal Harris is getting rid of the engagement ring given to her by former fiance and Playboy founder Hugh Hefner!

After calling off her wedding to 85-year-old Hugh back in June, Crystal was allowed to hold on to her estimated $90,000 engagement ring, you know, despite trashing Hugh by publicly stating sex with him only lasted “two seconds.”

TMZ is reporting today that the ever so classy Crystal will auction off the 3.39 carat circular-cut diamond at Christie’s in New York City in October.

A sources tells TMZ Crystal, 25, “couldn’t bear to look at the ring anymore because it brought back bad memories.” Poor poor Crystal!

According to the auction listing, the ring is only expected to fetch between $20,000 and $30,000. A closeup of Crystal’s ring is below!

As for Cyrstal’s love life, it was reported last month that she officially moved in with her lovah Jordan McGraw, aka the son of Dr. Phil.

“We were up in the bedroom,” Crystal tells PEOPLE, “and my favorite movie is The Little Mermaid, so he had the ring in a Little Mermaid box, and that was so special. I opened it and the first thing he said to me was, ‘I hope it fits!’ “

Crystal “is so totally devoted,” Hugh adds. “Her priorities are pretty much our relationship, No. 1 and No. 2 and 3, and you don’t always find that. Despite the age disparity, the truth of the matter is we have a great deal in common, we really complement one another, we have a wonderful time together, and I love her.”

So does the couple plan on having children? “I told my mom I never wanted children. I wanted animals instead, and there are tons of them here,” said Crystal. “If it happens, it happens, but that is not part of the plan,” added Hugh.

PEOPLE also adds that two of Hugh’s former girlfriends and Girls Next Door stars have sent their congrats to him. Kendra Wilkinson tweeted her congratulations to Hugh and Crystal while Bridget Marquartsent ‘I Do’ cupcakes to the couple.

On the other hand, Holly Madison, Hugh’s main squeeze for 7 years, has yet to congratulate the couple or publicly speak out on the engagement. In fact Holly declined to comment on the news during a recent interview over the weekend.

And while Crystal tells PEOPLE that Holly plans to say “hi” during her upcoming visit to the Playboy mansion on Wednesday (she is going there to film a segment for her E! reality show Holly’s World), the Chicago Sun-Times is reporting that Holly, 31, is “very upset” about the engagement news.

As reported, Holly ended her relationship with Hugh after 7 years of dating because Hugh told her he never wanted to get married or have children again. “She can’t believe Crystal was able to get Hef to agree to something she had tried for so long,” said a source to the Sun-Times.

Sources also tell the newspaper that it is unlikely Hugh will actually walk down the aisle with Crystal, adding that this will likely be a long-term Hollywood engagement. And if Hugh does indeed end up marrying Crystal, she can expect a very tight prenup. “That prenup will be tighter than Cher’s most recent facelift!” said a source close to Hugh. Ouch.

As for the engagement ring, Crystal tweeted a picture of it last week. That picture is below. UsWeekly estimates the ring is a “3 1/2 carat brilliant-cut diamond set in platinum with micro pave diamonds the band” and is worth an estimated $90,000.

TELL US – DO YOU THINK HUGH & CRYSTAL WILL MAKE IT DOWN THE AISLE? SHOULD HOLLY BE UPSET?